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| 自动跟踪系统 | |||
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automatic tracking system : 27 phrases in 8 subjects |
| Air defense | 2 |
| Aviation | 7 |
| Drilling | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Shipbuilding | 2 |
| Space | 6 |
| Technology | 6 |
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